Even sushi addicts probably haven’t eaten real wasabi

Most of the time, the green paste which is served as wasabi is actually just a mixture of water, mashed horseradish and green food colouring, with a trace amount of wasabi plant.

A high-street chain told the Independent that their wasabi sachets only contain 0.6% of the Wasabia Japonica plant, which is what traditional wasabi is made from.

The explanation behind this is a practical one. The Wasabia Japonica plant is regarded as one of the hardest plants to grow. The plant requires lukewarm spring water and a specific amount of light and shade. The plant also needs to spend 18 months in the ground for perfect growth.

Additionally, real wasabi quickly loses its flavour and is best served within five minutes. As a result, even high-end chefs tend to layer up the wasabi between rice and fish to prevent if from losing its pungency.

Shark-skin graters are used in Japan to grind the plant’s stem instead of its root to release its strong flavour.

Consequently, the wasabi that is served worldwide is vastly different to the Japanese original.

Next time your self-claimed sushi loving hipster friend takes you to their favourite ‘authentic’ Japanese restaurant, you’ll know exactly what to say.

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Anson is a Central Saint Martin's fashion and textiles graduate. She is also an avid film buff whose exhaustive film knowledge is unparalleled - if you've seen it, chances are she's seen it too. Anson is originally from Hong Kong but has lived in the UK for four years and is hoping to stay for the foreseeable future.